The pronoun us is the plural first person objective case. It has no past tense: only verbs do.
Meant is the past tense of mean.
The past tense is you meant.
The simple past tense of 'am' is 'was' or 'were'
Kneed is the past tense of knee. If you mean knead, the past tense is kneaded.
If you mean writhe, the past tense is writhed.
The past tense is "I meant." (pronounced ment)
I think you mean "decide", which is "decided" in the past tense.
so the past tense is dense. its an adjective
Loosened Do you mean Lose ? The past tense for Lose would be lost.
If you do indeed mean 'husting', then there is no past tense of that as it is a verb. However, in case that was a typo, the past tense of 'is hustling' is 'hustled', and the past tense of 'is hunting' is 'was hunting'.
If you mean: to book, it is 'booked'If you mean: the object book, there is no past tense for that because it is not a verb.
The past tense of "help" would be "helped".helpedHelped.